import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        while(true){
            String str = bufferedReader.readLine();
            if(str.equals("bye")){
                System.out.println("bye bye");
                break;
            }else{
                System.out.println("hello," + str);
            }
        }
    }
}
